Automatic Transmission Cooler Problems of Nissan Frontier

While driving on the highway on 7/13/2019 I felt my truck jerking/tugging which has never happened before. On 7/14/2019 the 'service engine' light came on and the jerking was more noticeable, I made an appointment with the local Nissan dealer for service on 7/16/2019 and I was told that there is coolant mixed in with the transmission and the tcm eventually fried since it is housed inside the transmission, apparently the transmission cooling hoses route to the radiator and the only remedy is to replace the transmission and the radiator. I searched online and found that I am not the only one that this has happened to. The problem.

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Coolant leaked from radiator into transmission through faulty cooling lines. . Result was sudden loss of power while accelerating onto highway. Very costly repair bill ($4600. 00). Had to replace radiator and do a complete rebuild of transmission.

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Starting having problems with transmission it started popping as I would back up , so I thought it was the drive shaft. I took it to a garage and they found that the radiator cooling system had let go letting the cooling and transmission mix. I don't understand why there wasn't a recall on this if Nissan new about it. It started to slip a couple of times as I went to pull out and that's when I took it to garage.

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Engine coolant has leaked from the radiator into the transmission fluid cooling section of the radiator, then into the transmission resulting in over $5200 in a transmission rebuild. Having checked various web sites I notice that this has been a recurring problem with this model. My question if Nissan has known about this problem, why has a recall not been issued? also, why should owners be responsible for footing the bill for rebuilding the transmission? due to the nature of this, I will be contacting the federal transportation agency that provides oversight of vehicle safety and recalls. It is unsatisfactory that Nissan does not own up to it's responsibilities!.

The transmission line that runs through the radiator broke in half , the cooling was pushed into the transmission and the transmission oil was pushed into the radiator,, the radiator, radiator hoses ,transmission lines , threats, heat core, water pump, and read to tank , now had oil and cooling in them , d-patrick of evansville indiana had ran a 15 point inspection on this truck , they said the radiator was leaking and the transmission oil was discolored, they knew that there was some thing wrong with this trif I.

Nhtsa action number 12004. This week my 2007 Nissan Frontier's transmission failed at roughly 62,000 miles. I had the vehicle towed to my nearest Nissan dealer where they informed me that it failed due to a leak in the cooling system causing coolant to leak into the transmission causing the failure. They also informed me that this has been such a problem that Nissan "extended the warranty" to help fix the problem. The only issue is that the deductible for the "warranty" is $3,000! that does not seem like much of a warranty to me. I feel like Nissan has admitted the problem and is trying to avoid a recall by issuing the extended warranty with a deductible that is most likely covering a majority of the cost of the job if not entirely. Since this investigation is still open I thought it only appropriate to contribute.

The transmission line runs through the radiator in these vehicles. It broke inside radiator and put transmission fluid into cooling system and coolant into transmission, causing failure of both systems. When problem was detected(service engine light came on and transmission slipping) I took to mechanic, we flushed transmission and cooling system. Transmission is systematically failing ,.

While driving to work with out notice the transmission failed, and would not engage, leaving me with out controll of the pickup, while I was in motion , the engine raced but lost controll of the drive, which could have been serious. I found out after the fact, that Nissan had been in a class action law suite because of this problem, but only remedy the problem when you break down out of controll. I was told 3 months before I bought it , Nissan should have notified someone, and the dealer pushed it off till the 6 mon. Warranty ran out from haldeman Ford of allentown. The Nissan dealer at rothrock Nissan in allentown said it was a Nissan problem, but Nissan corp refused to help because the pickup broke down a few months too late after a 10 year period of fixing this dangerous problem that could have been very serious. . The transmission cooling lines at the radiator leek fluid back into the transmission and then width no warning fails to engage while you are driving.

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The automatic transmission cooling lines were compromised in the radiator. Coolant contaminated the automatic transmission fluid and ruined the transmission specifically causing the relay in the transmission that is connected to the starter circuit to malfunction. There was therefore no warning that anything was wrong until the truck simply would not start. The quote from the dealership is $6,600. This is particularly frustrating because 6 months ago I paid for a full inspection of the vehicle and though this is a known issue that is preventable, there was no mention of it in the report.

Transmission failed due to coolant intermixing with transmission fluid. This is the second time this vehicle has had catastrophic transmission failure due to a crack in the cooling system. First time was just over the warranty so I was forced to pay a $2500 copay. The vihicle started showing signs of a secondary failure just prior to 100000 miles and when I brought it to the dealer they lied to me and said there was just residual oil in the radiator from the first failure. . . Now I am past any warranty copay and the transmission is failing at just 100500 miles. That is just two years (less than 18000 miles) after they replaced the radiator and transmission. This is unacceptable that consumers are being forced to pay for a known issue of poor engineering especially when it was supposedly fixed by the dealer with Nissan parts. They have obviously not fixed the problem but just replaced with another defective part. On top of that they denied there was a problem to so I would continue to drive the vehicle until it was past the extended warranty (from 2012 class action lawsuit). While there was no accident in either indecent there was a near collision the first time as I was in the middle of a busy intersection and the second there was traffic behind me that had to avoid rear-ending me as the vehicle stopped, this is a dangerous defect that could result in injury or death.

Tl-the contact owns a 2006 Nissan Frontier. The contact stated that wile getting a oil change, the mechanic notice the cooling system was contaminated from the transmission oil. In addition, the cooling system was fractured. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 83,000. Ak.

When the truck transmission shifted into 5th gear there was a grinding noise in the transmission. This problem has been repccuring and getting worse. The nissian dealer verified it is due to contaminated transmission fluid due to a leak in the cooling radiator.

I purchased a 2007 Nissan Frontier in 2013, and just prior to reaching 109,178 my transmission started slipping badly so I took it to my local mechanic and he discovered that my "sealed" transmission was missing two quarts of oil and there were no signs of leaking on the external portion of the transmission. He replaced the missing oil and after a week of driving the transmission was slipping again. He checked the oil level and again it was quart low and slipping badly. It was then I started researching Nissan transmission problems and discovered that what I was experiencing was a well known (by Nissan) problem with their transmissions. Now at 109,275 miles the transmission has completely failed and it all could have been prevented had Nissan fixed the well known problem before they sold the vehicle to me. Funny the salesman that sold the truck to me suggested that I purchase a "power-train" warranty "just in case" because it was 4wd, I find that very ironic. I purchased the warranty and now I am being told that the repair cost for the blown transmission may not be covered because the transmission cooling radiator is the cause of the failure. I feel that Nissan is fully responsible for whatever the cost is to fix the transmission because of their negligence in failing to fix the problem prior to the truck being resold.

While driving at speeds of approximately 40 mph the truck made a sound as though it was driving over rumble strips and it feels as though the transmission is slipping or about to fail. This will last 5 to 10 seconds and then it will seem normal, and then after a short while the sound and slippage will again occur. I am concerned that the transmission is experiencing the problem which has plagued other 2005-2010 Nissan models where transmission fluid becomes contaminated with antifreeze from cracks which develop in the transmission cooling line where it passes thru the radiator. I have called Nissan to report this. It was assigned case #17221886.

Original manufactured radiator deffect caused automatic transmission cooling line to mix with coolant causing transmission failure with no warning signs. A catastrophic failure of the transmission almost resulted in a crash do to vehicle stalling at high speeds. Not covered by warranty. The warranty denies the radiator as part of the warranty resulting in the owner having to pay for fixing damages.

The transmission cooling unit in the radiator leaked. My coolant system became a brown sludge due to having transmission fluid leak into it. My transmission fluid had coolant leak into it and transmission is damaged.

At the approximate speed of 5 to 8 mph, and accelerating, the "service engine soon" signal light up. Immediately I had to turn 5000 rpms to reach a speed of 20 mph. I drove the vehicle approximately 5 miles to home and parked it their. Contacted my mechanic and took the vehicle to his garage the next morning for a total of 8 miles in addition to the 5 for a total of 13 miles driven while in warning. Upon completion of a diagnostics check, it was discovered that there had been a transmission radiator valve failure. This valve fails to operate, and does not allow coolant and lubrication of the transmission to continue. The valve is connected to the transmission radiator, located within the confines of the cooling radiator. The radiator was replaced, and upon test drive it was discovered that the transmission was deficient or had burned up 3rd and 4th gears. The totality of the repairs to include replacement of a transmission, radiator, fluids and labor was in excess of $4,000. 00. A vehicle with less than 130,000 miles of highway use, with all maintenance performed as prescribed within the owners manual, service recommendations should not have failed. A single valve is/ was the responsible culprit. I have previously owned a Ford ranger, took care of it as I have the Frontier, and had in excess of 200,000 miles on the ranger upon trading it in. I never replaced a transmission in my life on any vehicle. Nissan needs to acknowledge the issue at hand and take the appropriate corrective action, respect the customers that have respected you over the years.

The transmission had been shuttering and slipping for a couple of months. It was getting worse so I took it to kings transmission on 3-13-14 to have it looked at. They discovered water in the fluid and informed me that this model of vehicle had a wide spread problem with the radiator failing and leaking coolant into the transmission cooling lines. The truck is now at a Nissan dealer getting a new transmission and radiator.

The contact owns a 2006 Nissan Frontier. The contact was driving approximately 35 mph when the vehicle began to vibrate before stalling. The vehicle was taken to the dealer where the contact was informed that the cooling unit inside had ruptured. The failure caused coolant to leak into the transmission and transmission fluid to leak into the radiator. The vehicle was not repaired. The manufacturer was not notified. The failure mileage was 124,000.

The truck would get a shudder/vibration that shook the whole truck at around 45 and 60 miles per hour and would not shift properly. A Nissan dealer verified that the transmission had been cross contaminated with coolant fluid. I was livid to learn that Nissan knew about this issue since 2007 but did not tell me about the defect when I took the truck for maintenance (a transmission fluid exchange) in 2010 when I had 68,000 miles on the truck. I was robber of the opportunity to take action even at my own cost that would have prevented this catastrophic failure. Nissan refuses to pay anything towards the cost citing the settlement in the class action. I was told the terms of the settlement would not allow Nissan to cover anything after 100,000 miles. I refused to allow the dealer to fix it because they did not give me a warning when I was having the routine maintenance done on the trani and because Nissan will never get another penny from me. The service tech at the Nissan dealer told me not to buy an after market radiator because it would be based on the old radiator design so I could have the same problem of cross contamination again. He said Nissan had a new radiator. Clearly sounds like a manufacturer design defect. Also, I read that it is for 2005-2010 Nissans but I spoke with the owner of a 2011 Nissan Frontier who told me he had the cross contamination but because it was under warranty, Nissan had to pay to fix everything. The fact that Nissan knows about this but is not being proactive in letting customers know that there could be a problem is irresponsible. I had to pay $5200 to fix the trani and radiator, $110 for the dealer to confirm cross contamination, $104 for towing and $330 for a rental car. This is 180 degrees from how Honda is treating the recently announced cooling fluid leak they have. Honda is extending the warranty 10 years with unlimited miles.

We where driving on the highway when the trucks engine started to make noises and losing speed. It didn't give any warning, and it completely stopped running. The mechanics diagnostic was " c/s transmission wont move and mil is on. Vehicle needs a transmission and radiator due to an internal leak from the cooling system in to transmission" we took it to the Nissan agency because of the warranty but they refused to respect the warranty even though I have I have two diagnostics from different mechanics explaining that I have that same problem, Nissan is not making its self responsible even though its trucks have a factory defect.

Automatic transmission began stumbling and then I lost 5th gear. Took to durabuild transmission shop and was told that engine coolant had gotten into the transmission from the radiator transmission cooling lines. Transmission had to be cleaned & repaired. The valve body assembly had to be replaced along with the solenoid. Repair bill came to $4100. 00.

Tl-the contact owns a 2005 Nissan Frontier. The contact stated there was oil in the driveway. The vehicle was taken to the dealer for diagnostic, who stated that there was a cooling fluid leak and the transmission fluid would mix with cooling fluid. The vehicle was repaired by replacing the radiator and the transmission assembly. The failure was not reported to the manufacturer. The failure and current mileage was 89,047. Yn.

Transmission failed completely while my daughter was driving leaving her stranded in a busy intersection. Vehicle was towed. Transmission was found to have radiator fluid in it as well as transmission fluid in the cooling system. After investigating this issue on the internet it is obvious that Nissan has been aware of the issue with faulty radiators for a long time. (when I was still under my extended warranty. ) had Nissan informed owners this could have resolved with a radiator change that I would have gladly done at my expense. Now I'm looking at over $4000. 00 in repair costs. Shame on Nissan!.

$6219. 70 for a remanufactured transmission because I'm ~2000 miles out of their recently "extended" warranty. Transmission and radiator/cooling system were recommended to be replaced by Nissan today because of contamination of transmission fluid by a (known but not recalled) defective transmission cooler line. At approximately 98,000k the truck began to experience vibration with overdrive engaged. It felt like driving over rumble strips also, the truck had no heat when idling. I took it to a qualified local mechanic and had the radiator flushed. That corrected the heat issue. It was recommended to take the truck to a transmissoin shop to look at the issue. I drive the truck daily to/from work and travel with my 3 daughters to and from school. My next opportunity was about 6 weeks later and I took it to Nissan. There was a recent class action suit regarding this issue and "an extension was offered which would repair the issue for $3000. 00. This covered cars up to 100k. Because Nissan did not diagnose this issue until I was at 102,200 miles, a low level call center denied the repair. Rather than drive the 10,000 miles per year that is apparenlty acceptable to Nissan, I drive roughly 12,750. That extra 35 miles per day makes it so that I have to pay an additional $3219. 70 for something that I should be paying nothing for. The fix for the issue that destroyed my transmission is actually a roughly $500 repair or less than $100 for a diy'er. Nissan was aware of this issue and should have issued a recall before their "customers" transmissions started destroying themselves.

I was driven @ 45 mph I fell the roughness of the truck, I took the truck to the dealer the technician said that the transmission got mixed up w/ the coolant and they told me that it need to replace the transmission and radiator. Anyway I purchased outside extended warranty for my truck last year and I cannot used it because their policy that it doesn't cover cooling system. I call north Nissan they said they give us extended warranty for me is not the warranty it is manufacture defect pls. Help me that Nissan will fix the problem.

Transmission and radiator/cooling system to be replaced due to contamination of transmission by radiator fluid. Routine maintenance performed regularly. At 98,000 miles began to experience sporadic vibration when driving, was diagnosed with above state issue. I use the truck to commute with my children everyday on the interstate, while I am thankful that the transmission has not stopped functioning, it has put us at greater risk than usual with a compromised transmission. To have both systems replaced, I have been given "an opportunity" to provide a "CO-pay" of $3000. 00. I paid Nissan once for a functional and reliable transmission and cooling system, I resent having to pay an additional $3000. 00 for a design flaw made by Nissan. As a consumer, $3000. 00 is the type of money used as a down payment for a new car, not what I expect to pay as "routine maintenance" on a vehicle with less than 100,000 miles on it. My payment would have been lower if mileage were lower. It is my understanding that the corrosion happens over time, I'm not sure how much time it takes, but I feel certain it was thousands of miles ago. If I had been made aware of the issue earlier, I could have addressed it, possibly with less damage to my vehicle, less safety/risk to my family, and certainly at less cost regarding the "copay" for me as the copay is based on mileage on the vehicle. The heater has never blown warm air when idling, which is one of the few early signs of this issue from what I understand. This indicates to me that problem has existed for most of the life of the truck.

The contact owns a 2006 Nissan Frontier. The contact stated that the transmission cooling system failed and allowed radiator fluid to leak into the transmission causing it to fail. The manufacturer was contacted about the failure. The transmission was replaced at owner's expensive. The failure mileage was 110,000 and the current mileage was 111,500. Updated 5/15/13 updated 05/31/2013.

Started to notice heat not working at an idle but when accelerated heat was working fine. I didn't think anything about it seeing as it was cold outside. Then I received a notice for a suit against Nissan for transmission problems caused by transmission cooling line leaking causing coolant and transmission fluid to mix and transmission failing. I now have 102,000 miles on my Frontier and the settlement Nissan offers will not cover me even though vehicle is only 5 years old. I did some research and found out the heat issue is caused by the leak as well. Nissan should have a recall for this issue not a settlement which only covers people who never drive their vehicle. 8 year 80,000 mile extension is a joke. Now I will have to come out of pocket to repair my only vehicle that I have before further damage is done to the transmission. It stutters at the moment hopefully it wont completely fail before I can afford to repair it.

I took my Frontier truck in for a 120000 mile schedule maintenance check and oil change. The deal told me that the radiator coolant and transmission fluid had mixed together due to a problem with the radiator. I was told that they would flush the radiator and transmission and try to clean out most of the mixed fluid. I was informed that I need to replace the radiator and transmission might have to be also replaced. The cost for the replacement would be around $8400. I began to do some research into the problem and found out that Nissan know that there was a problem with the radiator and that the fluid could leak into the transmission and damage the transmission. I saw that Nissan would extend the warrant to cover the cost if you had less that 8 years and 80000 miles. This warrant would now help me, due tot the fact I Ave almost 119000 miles on my truck. I think if Nissan knew about this problem they would have a recall on all Frontiers, pathfinders and xterras from 2005-2010 and pay for them to be fixed . It will cost me over $6000 to have a new transmission put into my Frontier truck. My truck is a 2005 Frontier le. I am having the radiator assy replaced ($991. 84) oil cooler assy replaced ($498. 49) transmission and cooling system flushed ($421. 52). The 120000 mile service a/t will cost me $400. I am going to search around to see how much a new transmission for my truck would cost. The dealer said the cost for replacing my transmission would be $6155. 14. They would sell me the transmission for their cost which would save me $925. I think that Nissan should a lease help pay for half or 2/3 of the cost for me to get my truck fixed.

Transmission oil cooling lines inside radiator failed, contaminating the transmission, radiator, and engine. Transmission and radiator need replaced, engine needs flushed, $6,000 estimate. Nissan refuses to help with payment even though they are aware of a rampant problem. They increased the warranty to 80,000 miles, but I have 88,000 miles on the vehicle.

This problem is in the automatic transmission. Due to Nissan producing a faulty and very poorly engineered cooling system for the 2005 Nissan Frontier, pathfinder, and xterra automatic transmissions they eventually get contaminated with radiator coolant and makes the transmission slip and clunk during shifting. Mine slips from 2nd into third and when I accelerate in any gear. There is no power unless I baby it along. This has been hazardous twice now when entering the freeway and changing lanes. A semi-truck was in the lane I needed to get into and I could not accelerate enough to merge properly. Nissan refuses to admit the problem is theirs even though the consumer complaints are numerous. If you are not already aware of this just go online and you will find horror stories from people with the same problem.

Transmission failed while driving in very busy traffic. Maximum 20 mph, while everybody else was driving 55+ mph. Transmission failed without warning leaving my son and I scared to death- if I had been merging into interstate traffic we would have been run over, maybe even killed. Nissan refuses to acknowledge issue with the radiator/transmission fluid cooling system. I hope nobody dies as a result of the defect or the situation it can put an unknowing driver in.

Brand new truck with 1507 miles dumped all it's transmission fluid, emitting smoke from all sides and underneath, stopped vehicle dead in its tracks. Repairing dealer gave me one of the "wedges" left in the transmission cooler line at the factory which caused cooler hose to detach and precipitated major vehicle failure. It was just plain luck that we were not injured or killed as we were on our way to climb donner pass (CA) with chains on during a heavy snowstorm. Reported to Nissan customer satisfaction. I suggest NHTSA institute a recall for at least inspection as this factory defect cause total transmission failure at any time, with resultant risk of injury and or death.

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